US20210049936A1 - Bistable Automatic Cable Wrap, Kit And Assembly For Wrapping, Marking Or Patching - Google Patents
Bistable Automatic Cable Wrap, Kit And Assembly For Wrapping, Marking Or Patching Download PDFInfo
- Publication number
- US20210049936A1 US20210049936A1 US17/087,200 US202017087200A US2021049936A1 US 20210049936 A1 US20210049936 A1 US 20210049936A1 US 202017087200 A US202017087200 A US 202017087200A US 2021049936 A1 US2021049936 A1 US 2021049936A1
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- US
- United States
- Prior art keywords
- cable wrap
- automatic cable
- bistable automatic
- wrap
- bistable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000007639 printing Methods 0.000 claims description 16
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- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000976 ink Substances 0.000 claims description 6
- 238000002372 labelling Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
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- 239000003550 marker Substances 0.000 claims description 4
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- 239000007788 liquid Substances 0.000 claims description 2
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- 238000000034 method Methods 0.000 description 6
- 239000004831 Hot glue Substances 0.000 description 4
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- 230000000712 assembly Effects 0.000 description 2
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- 239000011159 matrix material Substances 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0295—Labels or tickets for tubes, pipes and the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
- B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
- F16L3/23—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other
- F16L3/233—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for a bundle of pipes or a plurality of pipes placed side by side in contact with each other by means of a flexible band
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G2200/00—Indexing scheme relating to installation of electric cables or lines covered by H02G
- H02G2200/20—Identification of installed cables
Definitions
- the present invention relates to a cable wrap and, more particularly, to a bistable automatic cable wrap for being wrapped around a cable or wire.
- Cable wraps are widely applied to temporarily or permanently provide a cable marker that allows the type and/or functionality of the marked cable to be indicated. Furthermore, cable repair patches are also known, which allow damaged cable insulation to be repaired. The solutions in the art require a sequence of steps for their application, which requires skilled handling by the user and is time-consuming.
- a bistable automatic cable wrap for being wrapped around a cable or wire has a stable extended state in which the bistable automatic cable wrap extends essentially along a longitudinal direction.
- the bistable automatic cable wrap automatically adopts a stable wound state if deformed in the extended state.
- FIG. 1 a is a perspective view of a cable wrap according to an embodiment in an extended state
- FIG. 1 b is a side view of the cable wrap of FIG. 1 a;
- FIG. 2 a is a perspective view of the cable wrap of FIG. 1 a in a wound state
- FIG. 2 b is an end view of the cable wrap of FIG. 1 a in the wound state
- FIG. 3 a is a perspective view of a cable wrap according to an embodiment on a cable
- FIG. 3 b is a perspective view of a cable wrap according to an embodiment on a plurality of cables
- FIG. 3 c is a perspective view of a cable wrap according to another embodiment on a cable
- FIG. 4 a is a perspective view of a cable wrap according to another embodiment
- FIG. 4 b is a perspective view of a cable wrap according to another embodiment
- FIG. 5 a is a sectional end view of the cable wrap of FIG. 4 b;
- FIG. 5 b is a sectional end view of the cable wrap of FIG. 3 a;
- FIG. 6 a is a perspective view of a first step of a process of applying a cable wrap according to an embodiment to a cable;
- FIG. 6 b is a perspective view of a second step of the process of applying the cable wrap of FIG. 6 a to the cable;
- FIG. 7 is a plan view of a kit according to an embodiment
- FIG. 8 is a sectional side view of an indication member of a cable warp according to an embodiment
- FIG. 9 is a sectional side view of an indication member of a cable warp according to another embodiment.
- FIG. 10 is a sectional side view of an indication member of a cable warp according to another embodiment.
- FIG. 11 is a perspective view of a kit according to another embodiment.
- FIGS. 1 a , 1 b , 2 a , 2 b , 3 a and 3 b a bistable automatic cable wrap 1 according to the invention is shown.
- the cable wrap 1 is shown in an extended state 3 in a perspective view ( FIG. 1 a ) and a side view ( FIG. 1 b ).
- the cable wrap 1 extends in a longitudinal direction 4 .
- FIGS. 2 a , 2 b , 3 a and 3 b the cable wrap 1 is shown in a wound state 5 .
- the wound state 5 may correspond to a pre-assembled state 7 or to an assembled state 9 . The latter two will be described below in a more detailed description of FIGS. 3 a - 3 c.
- FIGS. 1 a , 1 b , 2 a and 2 b show a solid cable wrap 1 which is embodied monolithically.
- the cable wrap 1 has a front side 11 and a back side 13 , wherein in the wound state 5 the back side 13 faces towards an encircled volume 15 .
- a body 35 of the cable wrap 1 may have a structured body 37 as shown in circle 39 .
- the body 35 is made of a metal 41 .
- the cable wrap 1 may, however, be made of a polymer 43 .
- the inventive cable wraps 1 made of a polymer 43 are adapted to be non-repetitively used for marking a cable or wire 45 , whereas a cable wrap 1 according to the invention that is intended for repetitive use is made of metal 41 in an embodiment.
- the front side 11 comprises an indication member 17 .
- a second embodiment of the indication member 17 a is indicated with a dashed line.
- the indication member 17 may be provided in different sizes and may cover the entire cable wrap 1 in an embodiment.
- the indication member 17 may comprise an illuminating material and/or a fluorescent material.
- the indication member 17 provided at the cable wrap 1 may cover only a part of the cable wrap 1 , such as a central part, wherein, in different embodiments, the indication member 17 may cover an entire side of the cable wrap 1 .
- the cable wrap 1 of the embodiment shown in FIG. 1 a is made of a sheet metal 19 which may be pre-tensioned, such that, in the extended state 3 , a convex portion 21 is provided which extends away from the front side 11 in a height direction 23 away from side edges 27 of the cable wrap 1 .
- the height direction 23 is shown in a cut view 25 of FIG. 1 a .
- the cut is performed at a position of the indication member 17 , such that the indication member 17 is also shown in the cut view 25 .
- the bistable automatic cable wrap 1 may have a material thickness between 0.1 and 0.7 mm. In another embodiment, a thickness of the cable wrap 1 may be between 0.7 mm and 1.0 mm, or even more than 1.0 mm.
- FIG. 1 a another cut view 25 a is shown, which shows a second embodiment 2 of the bistable automatic cable wrap 1 .
- This second embodiment 2 does not comprise a curved shape 1 a of the first embodiment, but rather an angled shape 1 b .
- the automatic cable wrap 1 of the angled shape 1 b has a flat base 8 and two wing portions 10 .
- the wing portions 10 extend towards the same side of the flat base 8 .
- Further shapes with a plurality of edges and/or curved portions are conceivable, wherein all said embodiments may have in common that one side is essentially concave, while the opposite side is essentially convex.
- a curvature 29 of the convex portion 21 is deliberately exaggerated for the purposes of illustration.
- the cable wrap 1 is stable in the extended state 3 , as well as in the wound state 5 .
- the cable wrap 1 Upon exertion of a force F in a direction counter to the height direction 23 , shown in FIG. 1 a , the force F at least partially deforming the cable wrap 1 , the cable wrap 1 automatically adopts the wound state 5 , in which the curvature 29 of the cable wrap 1 in the extended state 3 is inverted as indicated in the cut view 25 of FIG. 2 a .
- the curvature 29 of the cable wrap 1 has a concave portion 31 in the wound state 5 .
- the cable wrap 1 may, at least in the extended state 3 , have a U-shaped profile if cut along a plane oriented essentially perpendicular to the longitudinal direction. Such a U-shaped profile may invert its curvature when it adopts the wound state 5 .
- a deformation of the cable wrap 1 may be understood as a force exerted on the cable wrap 1 , in particular to deform at least a portion, e.g. a trigger portion or surface, thereof.
- the bistable automatic cable wrap 1 starts to coil up.
- such a deformation may be applied repetitively.
- Such an embodiment of the inventive cable wrap 1 is reusable.
- the diameter of the wound cable wrap 1 may be defined by the cable or wire 45 around which the cable wrap 1 is attachable.
- the cable wrap 1 may exert a force on a cable or wire 45 to which it is attachable, wherein the force is directed radially inwards.
- the cable wrap 1 may have a minimum diameter which equals the outer diameter of the cable or wire 45 . The minimum diameter corresponds to the diameter which is obtained if the cable wrap 1 is wound without a cable or wire 45 .
- FIG. 2 b an overlap portion 33 is shown, wherein the cable wrap 1 may cover at maximum two turns 129 which is shown next to the figure.
- the overlap portion 33 shown here two ends 47 do partially enclose one another due to their concave portion 31 .
- circle 39 in FIG. 2 b which shows a cut along A-A.
- the two concave portions 31 of a first end 47 a and a second end 47 b abut each other.
- a maximum diameter 49 indicated in the circle 39 , corresponds to a single turn diameter 51 which is merely increased by a material thickness 53 .
- This partial enclosing is only shown in the circle 39 of FIG. 2 b.
- FIGS. 3 a , 3 b and 3 c show exemplary assemblies 54 , which are respective applications of the cable wrap 1 .
- the assemblies 54 comprise at least one cable or wire 45 and a cable wrap 1 according to the invention, wherein the cable wrap 1 is wound around the at least one cable or wire 45 , and a length 113 (see FIG. 4 b ) of the cable wrap 1 corresponds at least to a circumference 115 of the assembly 54 .
- the circumference 115 is not limited to a circular shape, but may also be understood as the perimeter of a rectangular or a polygonal shaped cable 45 .
- the cable wrap 1 may be wrapped around a cable or wire 45 of any arbitrary shape or diameter.
- FIG. 3 a shows an inventive cable wrap 1 which is used for permanently marking the cable or wire 45 .
- the cable wrap 1 is in the wound state 5 and wound around the cable 45 .
- the indication member 17 is shown and visible to a user.
- the back side 13 faces towards the cable 45 and has an adhesive material 55 .
- the adhesive material 55 is in an unheated state 57 and solely attached to the cable wrap 1 .
- the cut view shown in the first circle 39 a is a pre-assembled state 7 of the cable wrap 1 .
- the adhesive material 55 in particular a hot melt adhesive 59 , melts, fills remaining gaps 61 between the cable 45 and the cable wrap 1 and glues the cable wrap 1 to the cable 45 .
- the assembled state 9 is shown in a second circle 39 b of FIG. 3 a.
- a further embodiment of the inventive cable wrap 1 is shown, which is used for patching the cable or wire 45 .
- the cable 45 has a damaged portion 63 in its insulation 65 .
- the cable wrap 1 has an adhesive repair material 67 which behaves similarly as the hot melt adhesive 59 described above, wherein the adhesive repair material 67 is additionally configured to bond chemically and/or physically with the cable insulation 65 .
- the cable wrap 1 in circle 39 c therefore repairs the insulation 65 and protects the cable 45 against environmental influences.
- the cable wrap 1 may thus provide a waterproof connection 69 , an electrically isolating connection 71 , as well as a self-laminating connection 73 and a self-adhesive connection 75 .
- the connections 69 , 71 , 73 , 75 may be present in an arbitrary combination, such that, exemplarily, a laminating connection 73 may be waterproof 69 or an adhesive connection 75 may be electrically isolating 71 .
- an inventive cable wrap 1 is wound around a plurality 77 of cables 45 .
- the indication member 17 may thus be used, for example, for indicating a functionality of the plurality 77 of cables 45 .
- the cable wrap 1 may be applied as a reusable cable marker 78 , shown in FIG. 3 a , or a permanently fixed cable wrap 1 .
- the overlap portion 33 is located behind the cable 45 or the plurality 77 of cables 45 , and is thus not visible.
- the inventive cable wrap 1 is shown in a further embodiment, in which a wrap portion 79 rather than the entire body 35 is wound around the cable 45 .
- the cable wrap 1 has an indicator portion 81 , which is embodied as a flat sheet part 83 and which comprises the indication member 17 .
- the flat sheet part 83 does remain in an extended state 3 and does not adopt a wound state 5
- the wrap portion 79 which is shown in the wound state 5 in FIG. 3 c , may adopt both stable states 3 , 5 .
- This embodiment has the advantage that a cable 45 may be recessed in a module 85 and still be properly marked.
- the cable 45 itself may not be visible to a user, whereas the indicator portion 81 may extend beyond the cubage 87 (indicated by a dashed line) of the module 85 .
- the cable wraps 1 may be aligned in the same direction as the flat sheet 83 .
- FIG. 4 a and FIG. 4 b show a second and third embodiment of the inventive cable wrap 1 . Both embodiments comprise a surface 91 which increases friction between cable wrap 1 and wire 45 .
- the surface 91 is at least partially embodied at the back side 13 of the cable wrap 1 .
- Such a surface 91 may be embodied as a partial cover member 89 .
- the partial cover member 89 may be an edge cover 95 which extends along the side edges 27 of the cable wrap 1 and may be made of rubber 97 or other suitable friction increasing material 99 , as shown in FIG. 4 a .
- the surface 91 is embodied as a surface cover 101 covering the entire back side 13 of the cable wrap 1 .
- the surface cover 101 may be partially elastic and comprise a foam material 103 which may, on the one hand, increase friction between the cable wrap 1 and the cable 45 and, on the other hand, adapt to a possibly uneven surface of the cable 45 or the plurality 77 of cables 45 .
- FIG. 5 a shows a larger cross-section of the cable wrap 1 of FIG. 4 b
- FIG. 5 b shows a cut view of the embodiment of the inventive cable wrap 1 indicated in the first circle 39 a of FIG. 3 a
- the two embodiments are sheet metal parts 19
- the back side 13 is provided either with the foam material 103 or with the hot melt adhesive 59 or the adhesive repair material 67 in the unheated state 57 .
- the hot melt adhesive 59 or the adhesive repair material 67 is provided in the form of drops 105 at the back surface 13 .
- FIGS. 6 a and 6 b show two process steps for applying the inventive cable wrap 1 to a cable or wire 45 for obtaining the inventive assembly 54 .
- the cable wrap 1 In the first step shown in FIG. 6 a , the cable wrap 1 is in the extended state 3 and approached to the cable 45 .
- the cable wrap 1 adopts the wound state 5 .
- the cable wrap 1 In the wound state 5 , the cable wrap 1 may at least partially encircle the trigger portion 107 .
- the back side 13 of the cable wrap 1 may be located inside the circle/cylinder which is formed by the cable wrap 1 .
- FIG. 6 b the intermediate state 109 of the cable wrap 1 is shown, in which only the first end 47 a is in the wound state 5 , while the second end 47 b is still in the extended state 3 .
- this intermediate state 109 is not stable and the cable wrap 1 will automatically adopt the wound state 5 , which is indicated by a winding direction 111 that indicates the movement performed by the cable wrap 1 .
- the first end 47 a has a convex portion 21 and the second end 47 b a concave portion 31 .
- the assembly 54 adopts a state similar to the one shown in FIG. 3 a.
- the extended state 3 may be considered a metastable state, in which a disturbance having energy smaller than the potential energy of the metastable state will change the cable wrap 1 state into the wound state 5 .
- the wound state 5 may be considered the state of least energy of the bistable automatic cable wrap 1 .
- FIG. 7 shows a kit 117 according to an embodiment which comprises a plurality 77 of the inventive cable wraps 1 of different lengths 113 (only two lengths 113 are indicated) and/or widths 119 .
- Each of the cable wraps 1 may comprise an indication member 17 , wherein the front side 11 , which is visible in FIG. 7 , may have a flatness 121 which allows printing of the indication members 17 .
- the different cable wraps 1 are arranged in a matrix 123 that comprises a supporting frame 125 surrounding the matrix 123 and supporting bars 127 connecting the cable wraps 1 with each other and the cable wraps 1 to the supporting frame 125 . In FIG. 7 , not all supporting bars 127 are indicated with a reference numeral.
- the kit 117 may be adapted to be placed in a common printer or labeling apparatus for modifying the indication member 17 such that information may be provided on said indication member 17 . Possible processes include etching, engraving, deposition techniques or printing.
- the length of the cable wrap 1 may be limited by choosing a cable wrap 1 from the kit 117 having an appropriate length 113 . By choosing an appropriate length, limiting the cable wrap 1 to at most two turns about the cable 45 , excess material may be reduced and the assembly may not become larger than the space in which it is installed, even though the necessary space is increased by the cable wrap 1 which is wound around the cable or wire 45 .
- FIGS. 8 to 10 possible embodiments of the indication member 17 are shown.
- the figures each show a surface structure 133 whose dimensions are exaggerated for the purposes of explanation only.
- FIG. 8 a section of the inventive bistable automatic cable wrap 1 is shown in a cut perspective view.
- the indication member 17 comprises a homogenously smooth surface 130 which is characterized by an even height of the surface structure 133 .
- the surface structure 133 is furthermore independent of the direction along which it is viewed on the bistable automatic cable wrap 1 .
- Such a homogenously smooth surface 130 is in contrast to the untreated surface structure 133 a which comprises an unevenly rough surface being unisotropic, i.e. dependent on the direction along which it is considered.
- a homogenously smooth surface 130 is to be understood as a surface of the bistable automatic cable wrap 1 which may still comprise a surface roughness, wherein the roughness as well as the structure of the surface are isotropic, i.e. uniform in all directions along the surface.
- Such a homogenously smooth surface 130 may, for instance, be used for laser marking which applies a laser beam, as well as for continuous inkjet printing. In the latter method, the ink is deposited at a high velocity and neither marking technique requires a mechanical contact with the bistable automatic cable wrap 1 .
- the bistable automatic cable wrap 1 may be of any thickness and the corresponding surface of the indication member 17 may also be rough.
- thermal transfer printers may be applied to print or write onto the homogenously smooth surface 130 of the indication member 17 .
- the bistable automatic cable wrap 1 may be compressed during the printing operation which is carried out under an applied pressure.
- the material thickness of the above-described embodiment of the bistable automatic cable wrap 1 easily allows the slightly curved cable wrap 1 to be compressed during printing.
- the bistable automatic cable wrap 1 is provided with a preparation coating 131 which is neatly attached to the surface structure 133 of the cable wrap 1 .
- the preparation coating 131 is thus complementarily arranged along the surface structure 133 , thereby forming a printing or labeling surface 134 having a higher and more homogenous adhesion to acrylic or water-based ink than the surface structure 133 .
- the preparation coating 131 may be understood as a liquid or gel which may be applied to the surface of the indication member 17 and which bonds to the indication member 17 by physical and/or mechanical processes.
- the surface structure 133 provides a sufficient hardness so as not to be easily removed by friction, while at the same time providing a flexible surface.
- the coating 131 in an embodiment, is water resistant and adapted for absorbing acrylic or water-based inks.
- FIG. 10 shows a printing or writing substrate 132 which is placed above the surface structure 133 of the cable wrap 1 .
- the printing or writing substrate 132 also provides a printing or labeling surface 134 with similar properties to the one shown in FIG. 9 .
- the printing or writing substrate 132 may, for instance, be glued to the surface structure 133 and is thus, in contrast to the preparation coating 131 of FIG. 9 , not formed complementarily to the surface structure 133 .
- the printing or wiring substrate 132 absorbs water-based or acrylic inks in an embodiment.
- a bistable automatic cable wrap 1 with such a printing or writing substrate 132 may be adapted so that it is printable using an inkjet or laser printer, in particular a roll-to-roll inkjet label printer.
- the area available for printing and/or labeling the indication member 17 may solely be limited by the indication member 17 itself. As described above, printing and/or labeling may therefore be performed in only a part of the cable wrap 1 , such as a central part, or over an entire side of the cable wrap 1 if the indication member 17 is embodied as such. If the previously described bistable automatic cable wrap 1 has an angled shape, the indication member 17 is positioned at or on the flat base 8 .
- FIG. 11 shows another embodiment of the inventive kit 117 .
- the kit 117 is in the form of a roll product 135 suitable for roll-to-roll printing.
- the structure of each layer of the roll product 135 is similar to the one shown in FIG. 7 , i.e. it comprises different cable wraps 1 (not all of which are indicated using reference numerals), a supporting frame 125 and supporting bars 127 .
- the inventive bistable automatic cable wrap 1 , kit 117 , and assembly 54 have the advantage of an easier and faster installation which does not require additional means for fixing the cable wrap 1 prior to reaching a final installation position.
- the ease of use furthermore reduces the risk of a faulty or incomplete installation of the cable wrap 1 .
- the inventive solutions furthermore have the advantage that they are self-aligning during application and do not need to be held in place when being installed. Furthermore, the inventive solutions as less craft-sensitive when being installed. Additionally, no clamp or tape is needed to hold the inventive cable wrap 1 in place as it automatically self-winds around a cable or wire 45 and holds itself in place.
Abstract
Description
- This application is a continuation of PCT International Application No. PCT/EP2019/061163, filed on May 1, 2019, which claims priority under 35 U.S.C. § 119 to European Patent Application No. 18170422.2, filed on May 2, 2018.
- The present invention relates to a cable wrap and, more particularly, to a bistable automatic cable wrap for being wrapped around a cable or wire.
- Cable wraps are widely applied to temporarily or permanently provide a cable marker that allows the type and/or functionality of the marked cable to be indicated. Furthermore, cable repair patches are also known, which allow damaged cable insulation to be repaired. The solutions in the art require a sequence of steps for their application, which requires skilled handling by the user and is time-consuming.
- A bistable automatic cable wrap for being wrapped around a cable or wire has a stable extended state in which the bistable automatic cable wrap extends essentially along a longitudinal direction. The bistable automatic cable wrap automatically adopts a stable wound state if deformed in the extended state.
- The invention will now be described by way of example with reference to the accompanying Figures, of which:
-
FIG. 1a is a perspective view of a cable wrap according to an embodiment in an extended state; -
FIG. 1b is a side view of the cable wrap ofFIG. 1 a; -
FIG. 2a is a perspective view of the cable wrap ofFIG. 1a in a wound state; -
FIG. 2b is an end view of the cable wrap ofFIG. 1a in the wound state; -
FIG. 3a is a perspective view of a cable wrap according to an embodiment on a cable; -
FIG. 3b is a perspective view of a cable wrap according to an embodiment on a plurality of cables; -
FIG. 3c is a perspective view of a cable wrap according to another embodiment on a cable; -
FIG. 4a is a perspective view of a cable wrap according to another embodiment; -
FIG. 4b is a perspective view of a cable wrap according to another embodiment; -
FIG. 5a is a sectional end view of the cable wrap ofFIG. 4 b; -
FIG. 5b is a sectional end view of the cable wrap ofFIG. 3 a; -
FIG. 6a is a perspective view of a first step of a process of applying a cable wrap according to an embodiment to a cable; -
FIG. 6b is a perspective view of a second step of the process of applying the cable wrap ofFIG. 6a to the cable; -
FIG. 7 is a plan view of a kit according to an embodiment; -
FIG. 8 is a sectional side view of an indication member of a cable warp according to an embodiment; -
FIG. 9 is a sectional side view of an indication member of a cable warp according to another embodiment; -
FIG. 10 is a sectional side view of an indication member of a cable warp according to another embodiment; and -
FIG. 11 is a perspective view of a kit according to another embodiment. - In the following, the invention will be described by way of example using the accompanying figures. Individual technical features of the embodiments shown may be arbitrarily combined with each other or omitted. The embodiments shown in the figures are purely exemplary. Similar technical features and technical features having the same technical effect will be denoted using the same reference numeral. A repetitive description will be avoided, whereby differences between different embodiments will be explicitly detailed.
- In each of
FIGS. 1a, 1b, 2a, 2b, 3a and 3b , a bistableautomatic cable wrap 1 according to the invention is shown. InFIGS. 1a and 1b , thecable wrap 1 is shown in an extended state 3 in a perspective view (FIG. 1a ) and a side view (FIG. 1b ). In the extended state 3, thecable wrap 1 extends in alongitudinal direction 4. - In
FIGS. 2a, 2b, 3a and 3b thecable wrap 1 is shown in a wound state 5. The wound state 5 may correspond to a pre-assembled state 7 or to an assembled state 9. The latter two will be described below in a more detailed description ofFIGS. 3a -3 c. -
FIGS. 1a, 1b, 2a and 2b show asolid cable wrap 1 which is embodied monolithically. Thecable wrap 1 has afront side 11 and aback side 13, wherein in the wound state 5 theback side 13 faces towards an encircledvolume 15. In different embodiments of theinventive cable wrap 1, abody 35 of thecable wrap 1 may have a structuredbody 37 as shown incircle 39. In the embodiment shown in the figures, thebody 35 is made of a metal 41. Thecable wrap 1 may, however, be made of a polymer 43. The inventive cable wraps 1 made of a polymer 43, in an embodiment, are adapted to be non-repetitively used for marking a cable orwire 45, whereas acable wrap 1 according to the invention that is intended for repetitive use is made of metal 41 in an embodiment. - The
front side 11 comprises anindication member 17. InFIG. 1a , a second embodiment of theindication member 17 a is indicated with a dashed line. Theindication member 17 may be provided in different sizes and may cover theentire cable wrap 1 in an embodiment. Theindication member 17 may comprise an illuminating material and/or a fluorescent material. Theindication member 17 provided at thecable wrap 1 may cover only a part of thecable wrap 1, such as a central part, wherein, in different embodiments, theindication member 17 may cover an entire side of thecable wrap 1. - The
cable wrap 1 of the embodiment shown inFIG. 1a is made of asheet metal 19 which may be pre-tensioned, such that, in the extended state 3, aconvex portion 21 is provided which extends away from thefront side 11 in aheight direction 23 away from side edges 27 of thecable wrap 1. Theheight direction 23 is shown in acut view 25 ofFIG. 1a . The cut is performed at a position of theindication member 17, such that theindication member 17 is also shown in thecut view 25. - In an embodiment, the bistable
automatic cable wrap 1 may have a material thickness between 0.1 and 0.7 mm. In another embodiment, a thickness of thecable wrap 1 may be between 0.7 mm and 1.0 mm, or even more than 1.0 mm. - In
FIG. 1a , another cut view 25 a is shown, which shows a second embodiment 2 of the bistableautomatic cable wrap 1. This second embodiment 2 does not comprise acurved shape 1 a of the first embodiment, but rather anangled shape 1 b. Theautomatic cable wrap 1 of theangled shape 1 b has aflat base 8 and twowing portions 10. In the shown embodiment, thewing portions 10 extend towards the same side of theflat base 8. Further shapes with a plurality of edges and/or curved portions are conceivable, wherein all said embodiments may have in common that one side is essentially concave, while the opposite side is essentially convex. - In the side view of
FIG. 1b , acurvature 29 of theconvex portion 21 is deliberately exaggerated for the purposes of illustration. Thecable wrap 1 is stable in the extended state 3, as well as in the wound state 5. - Upon exertion of a force F in a direction counter to the
height direction 23, shown inFIG. 1a , the force F at least partially deforming thecable wrap 1, thecable wrap 1 automatically adopts the wound state 5, in which thecurvature 29 of thecable wrap 1 in the extended state 3 is inverted as indicated in thecut view 25 ofFIG. 2a . Thecurvature 29 of thecable wrap 1 has aconcave portion 31 in the wound state 5. Thecable wrap 1 may, at least in the extended state 3, have a U-shaped profile if cut along a plane oriented essentially perpendicular to the longitudinal direction. Such a U-shaped profile may invert its curvature when it adopts the wound state 5. - A deformation of the
cable wrap 1, as required to automatically adopt the stable wound state 5, may be understood as a force exerted on thecable wrap 1, in particular to deform at least a portion, e.g. a trigger portion or surface, thereof. Upon deformation, the bistableautomatic cable wrap 1 starts to coil up. In an embodiment, such a deformation may be applied repetitively. Such an embodiment of theinventive cable wrap 1 is reusable. - In the wound state 5, the diameter of the
wound cable wrap 1 may be defined by the cable orwire 45 around which thecable wrap 1 is attachable. In the wound state 5, thecable wrap 1 may exert a force on a cable orwire 45 to which it is attachable, wherein the force is directed radially inwards. In certain applications, thecable wrap 1 may have a minimum diameter which equals the outer diameter of the cable orwire 45. The minimum diameter corresponds to the diameter which is obtained if thecable wrap 1 is wound without a cable orwire 45. - In
FIG. 2b , anoverlap portion 33 is shown, wherein thecable wrap 1 may cover at maximum twoturns 129 which is shown next to the figure. In theoverlap portion 33 shown here, two ends 47 do partially enclose one another due to theirconcave portion 31. This is shown incircle 39 inFIG. 2b , which shows a cut along A-A. In an embodiment, the twoconcave portions 31 of a first end 47 a and a second end 47 b abut each other. Thus, amaximum diameter 49, indicated in thecircle 39, corresponds to asingle turn diameter 51 which is merely increased by amaterial thickness 53. This partial enclosing is only shown in thecircle 39 ofFIG. 2 b. -
FIGS. 3a, 3b and 3c showexemplary assemblies 54, which are respective applications of thecable wrap 1. Theassemblies 54 comprise at least one cable orwire 45 and acable wrap 1 according to the invention, wherein thecable wrap 1 is wound around the at least one cable orwire 45, and a length 113 (seeFIG. 4b ) of thecable wrap 1 corresponds at least to acircumference 115 of theassembly 54. It is to be noted that thecircumference 115 is not limited to a circular shape, but may also be understood as the perimeter of a rectangular or a polygonal shapedcable 45. Thecable wrap 1 may be wrapped around a cable orwire 45 of any arbitrary shape or diameter. -
FIG. 3a shows aninventive cable wrap 1 which is used for permanently marking the cable orwire 45. Thecable wrap 1 is in the wound state 5 and wound around thecable 45. On thefront side 11, theindication member 17 is shown and visible to a user. Theback side 13 faces towards thecable 45 and has an adhesive material 55. In afirst circle 39 a, the adhesive material 55 is in an unheated state 57 and solely attached to thecable wrap 1. The cut view shown in thefirst circle 39 a is a pre-assembled state 7 of thecable wrap 1. When heat is applied to thecable wrap 1 shown inFIG. 3a , the adhesive material 55, in particular a hot melt adhesive 59, melts, fills remaininggaps 61 between thecable 45 and thecable wrap 1 and glues thecable wrap 1 to thecable 45. The assembled state 9 is shown in asecond circle 39 b ofFIG. 3 a. - In a
third circle 39 c ofFIG. 3a , a further embodiment of theinventive cable wrap 1 is shown, which is used for patching the cable orwire 45. Thecable 45 has a damagedportion 63 in itsinsulation 65. Thecable wrap 1 has anadhesive repair material 67 which behaves similarly as the hot melt adhesive 59 described above, wherein theadhesive repair material 67 is additionally configured to bond chemically and/or physically with thecable insulation 65. Thecable wrap 1 incircle 39 c therefore repairs theinsulation 65 and protects thecable 45 against environmental influences. Thecable wrap 1 may thus provide a waterproof connection 69, an electrically isolating connection 71, as well as a self-laminating connection 73 and a self-adhesive connection 75. The connections 69, 71, 73, 75 may be present in an arbitrary combination, such that, exemplarily, a laminating connection 73 may be waterproof 69 or an adhesive connection 75 may be electrically isolating 71. - In
FIG. 3b , aninventive cable wrap 1 is wound around aplurality 77 ofcables 45. Theindication member 17 may thus be used, for example, for indicating a functionality of theplurality 77 ofcables 45. - The
cable wrap 1 may be applied as areusable cable marker 78, shown inFIG. 3a , or a permanently fixedcable wrap 1. InFIGS. 3a and 3b , theoverlap portion 33 is located behind thecable 45 or theplurality 77 ofcables 45, and is thus not visible. - In
FIG. 3c , theinventive cable wrap 1 is shown in a further embodiment, in which a wrap portion 79 rather than theentire body 35 is wound around thecable 45. Thecable wrap 1 has anindicator portion 81, which is embodied as aflat sheet part 83 and which comprises theindication member 17. Theflat sheet part 83 does remain in an extended state 3 and does not adopt a wound state 5, whereas the wrap portion 79, which is shown in the wound state 5 inFIG. 3c , may adopt both stable states 3, 5. This embodiment has the advantage that acable 45 may be recessed in amodule 85 and still be properly marked. Thecable 45 itself may not be visible to a user, whereas theindicator portion 81 may extend beyond the cubage 87 (indicated by a dashed line) of themodule 85. For ease of printing, the cable wraps 1 may be aligned in the same direction as theflat sheet 83. -
FIG. 4a andFIG. 4b show a second and third embodiment of theinventive cable wrap 1. Both embodiments comprise asurface 91 which increases friction betweencable wrap 1 andwire 45. Thesurface 91 is at least partially embodied at theback side 13 of thecable wrap 1. - Such a
surface 91 may be embodied as apartial cover member 89. Thepartial cover member 89 may be an edge cover 95 which extends along the side edges 27 of thecable wrap 1 and may be made of rubber 97 or other suitable friction increasing material 99, as shown inFIG. 4a . InFIG. 4b , thesurface 91 is embodied as a surface cover 101 covering the entireback side 13 of thecable wrap 1. The surface cover 101 may be partially elastic and comprise afoam material 103 which may, on the one hand, increase friction between thecable wrap 1 and thecable 45 and, on the other hand, adapt to a possibly uneven surface of thecable 45 or theplurality 77 ofcables 45. -
FIG. 5a shows a larger cross-section of thecable wrap 1 ofFIG. 4b , andFIG. 5b shows a cut view of the embodiment of theinventive cable wrap 1 indicated in thefirst circle 39 a ofFIG. 3a . The two embodiments aresheet metal parts 19, while theback side 13 is provided either with thefoam material 103 or with the hot melt adhesive 59 or theadhesive repair material 67 in the unheated state 57. The hot melt adhesive 59 or theadhesive repair material 67 is provided in the form of drops 105 at theback surface 13. -
FIGS. 6a and 6b show two process steps for applying theinventive cable wrap 1 to a cable orwire 45 for obtaining theinventive assembly 54. In the first step shown inFIG. 6a , thecable wrap 1 is in the extended state 3 and approached to thecable 45. When a force F is exerted from thecable 45 on a trigger portion 107 (the entireback side 13 may be the trigger portion 107), thecable wrap 1 adopts the wound state 5. In the wound state 5, thecable wrap 1 may at least partially encircle thetrigger portion 107. In the wound state 5, theback side 13 of thecable wrap 1 may be located inside the circle/cylinder which is formed by thecable wrap 1. - In
FIG. 6b the intermediate state 109 of thecable wrap 1 is shown, in which only the first end 47 a is in the wound state 5, while the second end 47 b is still in the extended state 3. However, this intermediate state 109 is not stable and thecable wrap 1 will automatically adopt the wound state 5, which is indicated by a windingdirection 111 that indicates the movement performed by thecable wrap 1. It is furthermore noted in the state shown inFIG. 6b that the first end 47 a has aconvex portion 21 and the second end 47 b aconcave portion 31. After the step shown inFIG. 6b , theassembly 54 adopts a state similar to the one shown inFIG. 3 a. - The extended state 3 may be considered a metastable state, in which a disturbance having energy smaller than the potential energy of the metastable state will change the
cable wrap 1 state into the wound state 5. Contrary to the metastable extended state 3, the wound state 5 may be considered the state of least energy of the bistableautomatic cable wrap 1. -
FIG. 7 shows akit 117 according to an embodiment which comprises aplurality 77 of the inventive cable wraps 1 of different lengths 113 (only twolengths 113 are indicated) and/orwidths 119. Each of the cable wraps 1 may comprise anindication member 17, wherein thefront side 11, which is visible inFIG. 7 , may have a flatness 121 which allows printing of theindication members 17. The different cable wraps 1 are arranged in amatrix 123 that comprises a supportingframe 125 surrounding thematrix 123 and supportingbars 127 connecting the cable wraps 1 with each other and the cable wraps 1 to the supportingframe 125. InFIG. 7 , not all supportingbars 127 are indicated with a reference numeral. Thekit 117 may be adapted to be placed in a common printer or labeling apparatus for modifying theindication member 17 such that information may be provided on saidindication member 17. Possible processes include etching, engraving, deposition techniques or printing. - The length of the
cable wrap 1 may be limited by choosing acable wrap 1 from thekit 117 having anappropriate length 113. By choosing an appropriate length, limiting thecable wrap 1 to at most two turns about thecable 45, excess material may be reduced and the assembly may not become larger than the space in which it is installed, even though the necessary space is increased by thecable wrap 1 which is wound around the cable orwire 45. - In
FIGS. 8 to 10 , possible embodiments of theindication member 17 are shown. The figures each show asurface structure 133 whose dimensions are exaggerated for the purposes of explanation only. - In
FIG. 8 , a section of the inventive bistableautomatic cable wrap 1 is shown in a cut perspective view. Theindication member 17 comprises a homogenously smooth surface 130 which is characterized by an even height of thesurface structure 133. Thesurface structure 133 is furthermore independent of the direction along which it is viewed on the bistableautomatic cable wrap 1. Such a homogenously smooth surface 130 is in contrast to theuntreated surface structure 133 a which comprises an unevenly rough surface being unisotropic, i.e. dependent on the direction along which it is considered. - A homogenously smooth surface 130 is to be understood as a surface of the bistable
automatic cable wrap 1 which may still comprise a surface roughness, wherein the roughness as well as the structure of the surface are isotropic, i.e. uniform in all directions along the surface. Such a homogenously smooth surface 130 may, for instance, be used for laser marking which applies a laser beam, as well as for continuous inkjet printing. In the latter method, the ink is deposited at a high velocity and neither marking technique requires a mechanical contact with the bistableautomatic cable wrap 1. Thus, the bistableautomatic cable wrap 1 may be of any thickness and the corresponding surface of theindication member 17 may also be rough. In an embodiment, thermal transfer printers may be applied to print or write onto the homogenously smooth surface 130 of theindication member 17. In such thermal transfer printers, the bistableautomatic cable wrap 1 may be compressed during the printing operation which is carried out under an applied pressure. The material thickness of the above-described embodiment of the bistableautomatic cable wrap 1 easily allows the slightlycurved cable wrap 1 to be compressed during printing. - In
FIG. 9 , the bistableautomatic cable wrap 1 is provided with a preparation coating 131 which is neatly attached to thesurface structure 133 of thecable wrap 1. The preparation coating 131 is thus complementarily arranged along thesurface structure 133, thereby forming a printing orlabeling surface 134 having a higher and more homogenous adhesion to acrylic or water-based ink than thesurface structure 133. The preparation coating 131 may be understood as a liquid or gel which may be applied to the surface of theindication member 17 and which bonds to theindication member 17 by physical and/or mechanical processes. Thesurface structure 133 provides a sufficient hardness so as not to be easily removed by friction, while at the same time providing a flexible surface. The coating 131, in an embodiment, is water resistant and adapted for absorbing acrylic or water-based inks. -
FIG. 10 shows a printing or writing substrate 132 which is placed above thesurface structure 133 of thecable wrap 1. The printing or writing substrate 132 also provides a printing orlabeling surface 134 with similar properties to the one shown inFIG. 9 . The printing or writing substrate 132 may, for instance, be glued to thesurface structure 133 and is thus, in contrast to the preparation coating 131 ofFIG. 9 , not formed complementarily to thesurface structure 133. The printing or wiring substrate 132 absorbs water-based or acrylic inks in an embodiment. A bistableautomatic cable wrap 1 with such a printing or writing substrate 132 may be adapted so that it is printable using an inkjet or laser printer, in particular a roll-to-roll inkjet label printer. - The area available for printing and/or labeling the
indication member 17 may solely be limited by theindication member 17 itself. As described above, printing and/or labeling may therefore be performed in only a part of thecable wrap 1, such as a central part, or over an entire side of thecable wrap 1 if theindication member 17 is embodied as such. If the previously described bistableautomatic cable wrap 1 has an angled shape, theindication member 17 is positioned at or on theflat base 8. -
FIG. 11 shows another embodiment of theinventive kit 117. Thekit 117 is in the form of a roll product 135 suitable for roll-to-roll printing. The structure of each layer of the roll product 135 is similar to the one shown inFIG. 7 , i.e. it comprises different cable wraps 1 (not all of which are indicated using reference numerals), a supportingframe 125 and supportingbars 127. - The inventive bistable
automatic cable wrap 1,kit 117, andassembly 54 have the advantage of an easier and faster installation which does not require additional means for fixing thecable wrap 1 prior to reaching a final installation position. The ease of use furthermore reduces the risk of a faulty or incomplete installation of thecable wrap 1. The inventive solutions furthermore have the advantage that they are self-aligning during application and do not need to be held in place when being installed. Furthermore, the inventive solutions as less craft-sensitive when being installed. Additionally, no clamp or tape is needed to hold theinventive cable wrap 1 in place as it automatically self-winds around a cable orwire 45 and holds itself in place. - In certain technical fields, e.g. in the railroad industry, there is a need for
reliable cable markers 78 which allow for repositioning of themarker 78. It is desired that a label indicating the type and/or functionality of the markedcable 45 faces towards the user. If this orientation is not set after the installation of theinventive cable wrap 1, it may easily be relocated along an extension of thecable 45 or rotated around the extension of thecable 45 in order to obtain the desired position.
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18170422.2 | 2018-05-02 | ||
EP18170422.2A EP3564565B1 (en) | 2018-05-02 | 2018-05-02 | Bistable automatic cable wrap |
PCT/EP2019/061163 WO2019211342A1 (en) | 2018-05-02 | 2019-05-01 | Bistable automatic cable wrap, kit and assembly for wrapping, marking or patching |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/061163 Continuation WO2019211342A1 (en) | 2018-05-02 | 2019-05-01 | Bistable automatic cable wrap, kit and assembly for wrapping, marking or patching |
Publications (1)
Publication Number | Publication Date |
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US20210049936A1 true US20210049936A1 (en) | 2021-02-18 |
Family
ID=62110913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/087,200 Pending US20210049936A1 (en) | 2018-05-02 | 2020-11-02 | Bistable Automatic Cable Wrap, Kit And Assembly For Wrapping, Marking Or Patching |
Country Status (3)
Country | Link |
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US (1) | US20210049936A1 (en) |
EP (1) | EP3564565B1 (en) |
WO (1) | WO2019211342A1 (en) |
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Also Published As
Publication number | Publication date |
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EP3564565A1 (en) | 2019-11-06 |
EP3564565B1 (en) | 2022-08-03 |
WO2019211342A1 (en) | 2019-11-07 |
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